Wednesday, June 19, 2019

Antennas etched from printed circuit board material

While unfamiliar to most amateurs, one way of constructing antennas is to etch them on printed circuit board material. This approach is particularly good at UHF and microwave frequencies where antennas are a practical size. Although you could potentially use compact etched antennas at VHF frequencies if they were miniature types like magnetic loops or loaded dipoles.

Circuit board antennas have many applications for short range communication devices.  They are particularly suitable for compact low power radio equipment where users want the antenna concealed, small or both. 

You might not build any of these, but if you want some background on etched printed circuit board antennas, some reading is here: 

* Louis Frenzel article on PCB antennas

* Compact patch antennas on circuit boards in space (pdf by Min, Howland & Potts)

* Choosing circuit board for low PIM Antennas by John Coonrod

PS:Want to read more about antennas? Consider this selection of antenna books. They are affiliate links meaning that I receive a small commission (at no extra cost to you) if you decide to purchase.


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